Convertir libros electrónicos a audiolibros

• •Credenciales de API de Google Drive
• •Pueden requerirse credenciales de autenticación para la API de destino

{
  "id": "bX6cyG6u0dUYo1gM",
  "meta": {
    "instanceId": "90d03af248d07e2ebe7c0ecf1b18f488f6465e5560f151e375f9e5ab447ab951",
    "templateCredsSetupCompleted": true
  },
  "name": "EBOOK",
  "tags": [],
  "nodes": [
    {
      "id": "7d65ca00-5f29-4e11-aaa8-77f8680add0c",
      "name": "Guardar fragmentos de audio",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        64,
        0
      ],
      "parameters": {
        "options": {},
        "fileName": "=/tmp/audio {{$itemIndex}}.mp3",
        "operation": "write",
        "dataPropertyName": "=audio {{ $itemIndex }}"
      },
      "typeVersion": 1
    },
    {
      "id": "0adc9201-3479-450f-8b5e-6bbf16cf01d2",
      "name": "Generar `concat_list.txt`",
      "type": "n8n-nodes-base.code",
      "position": [
        -240,
        192
      ],
      "parameters": {
        "jsCode": "/**\n * This Code node will:\n * 1. Gather all file paths from the incoming items (assuming each item has `item.json.filePath`).\n * 2. Build a single text string, each line in FFmpeg concat format: `file '/path/to/audio.mp3'`\n * 3. Convert that text to binary (Base64) so the next node (\"Write Binary File\") can save it as `concat_list.txt`.\n */\n\nconst items = $input.all();\n\n// Build the concat list\nlet concatListText = '';\n\nitems.forEach((item, index) => {\n  let filePath;\n\n\n  // Use only fileName for the rest\n    filePath = item.json.fileName;\n\n\n  if (filePath) {\n    concatListText += `file '${filePath}'\\n`;\n  }\n});\n\n// Convert the text to a Buffer, then to Base64\nconst buffer = Buffer.from(concatListText, 'utf-8');\nconst base64Data = buffer.toString('base64');\n\n// Return a single item containing the binary data\nreturn [\n  {\n    json: {},\n    binary: {\n      data: {\n        data: base64Data,\n        mimeType: 'text/plain',\n        fileName: 'concat_list.txt'\n      }\n    }\n  }\n];"
      },
      "typeVersion": 2
    },
    {
      "id": "c9aa3a38-449f-44a4-92d3-f28c1c29114c",
      "name": "Guardar concat_list",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        96,
        192
      ],
      "parameters": {
        "options": {},
        "fileName": "/tmp/concat_list.txt",
        "operation": "write"
      },
      "typeVersion": 1
    },
    {
      "id": "956de46d-86b8-40ec-81c0-91fe87113d75",
      "name": "Unir fragmentos de audio y eliminar archivos",
      "type": "n8n-nodes-base.executeCommand",
      "position": [
        -240,
        400
      ],
      "parameters": {
        "command": "ffmpeg -y -f concat -safe 0 -i /tmp/concat_list.txt \\\n-c copy /tmp/final_merged.mp3\n\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "1405b1fb-7a4f-45d9-976c-121437ece794",
      "name": "Leer final_merged",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        96,
        400
      ],
      "parameters": {
        "options": {},
        "fileSelector": "/tmp/final_merged.mp3"
      },
      "typeVersion": 1
    },
    {
      "id": "13749486-4e35-4444-9734-3be869668540",
      "name": "Nota adhesiva",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1680,
        -144
      ],
      "parameters": {
        "color": 4,
        "width": 560,
        "height": 1024,
        "content": "## EBOOK EXTRACTION MODULE\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nA sample [Little Red Riding Hood.pdf](https://www.laburnumps.vic.edu.au/uploaded_files/media/little_red_riding_hood.pdf)\n\n![Ebook](https://articles.emp0.com/wp-content/uploads/2025/10/Screenshot-from-2025-10-20-18-59-28.png)"
      },
      "typeVersion": 1
    },
    {
      "id": "f7a4e41c-3d00-4918-af1c-e1a772905671",
      "name": "Nota adhesiva1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1088,
        -144
      ],
      "parameters": {
        "color": 3,
        "width": 704,
        "height": 1024,
        "content": "## EBOOK TO AUDIOBOOK CONVERSION MODULE\n\nBreaks the large chunk of text into paragraphs and translate in batches of 5 paragraphs each\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n```json\n[\n  {\n    \"order\": 1,\n    \"text\": \"Little Red Riding Hood by Leanne Guenther Once upon a time, there was a little girl who lived in a village near the forest. Whenever she went out, the little girl wore a red riding cloak, so everyone in the village called her Little Red Riding Hood. One morning, Little Red Riding Hood’s mother asked her to take some food to her grandmother, as she had been ill. So they packed a nice basket for Little Red Riding Hood to take to her grandmother.\"\n  },\n  {\n    \"order\": 2,\n    \"text\": \"When the basket was ready, the little girl put on her red cloak and kissed her mother goodbye. \\\\\\\"Remember, go straight to Grandma's house,\\\\\\\" her mother cautioned. \\\\\\\"Don't dawdle along the way and please don't talk to strangers! The woods are dangerous.\\\\\\\" \\\\\\\"Don't worry, mommy,\\\\\\\" said Little Red Riding Hood, \\\\\\\"I'll be careful.\\\\\\\" But when Little Red Riding Hood noticed some lovely flowers in the woods, she forgot her promise to her mother.\"\n  },\n  {\n    \"order\": 3,\n    \"text\": \"She picked a few, watched the butterflies flit about for awhile, listened to the frogs croaking and then picked a few more. Little Red Riding Hood was enjoying the warm summer day so much, that she didn't notice a dark shadow approaching out of the forest behind her... Suddenly, the wolf appeared beside her. \\\\\\\"What are you doing out here, little girl and where are you going?\\\\\\\" the wolf asked in a voice as friendly as he could muster.\"\n  },\n  {\n    \"order\": 4,\n    \"text\": \"\\\\\\\"I'm on my way to see my Grandma who lives through the forest, near the brook,\\\\\\\" Little Red Riding Hood replied. Then she realized how late she was and quickly excused herself, rushing down the path to her Grandma's house. The wolf, in the meantime, took a shortcut... The wolf, a little out of breath from running, arrived at Grandma's and knocked lightly at the door. \\\\\\\"Oh thank goodness dear. Come in. Come in.\"\n  },\n  {\n    \"order\": 5,\n    \"text\": \"I was worried that something had happened to you in the forest,\\\\\\\" said Grandma thinking that the knock was her granddaughter. The wolf let himself in. Poor Granny did not have time to say another word, before the wolf gobbled her up! The wolf let out a satisfied burp, and then poked through Granny's wardrobe to find a nightgown that he liked. He added a frilly sleeping cap, and for good measure, dabbed some of Granny's perfume behind his pointy ears.\"\n  }\n]\n```"
      },
      "typeVersion": 1
    },
    {
      "id": "cf4982e5-e3ac-4ade-8fac-557a54c93a68",
      "name": "Nota adhesiva2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -352,
        -144
      ],
      "parameters": {
        "color": 5,
        "width": 656,
        "height": 1024,
        "content": "## AUDIO MERGING MODULE\n\n\nUses FFMPEG to combine multiple audio files into one \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nCan only work in self hosted n8n with ffmpeg installed. You cannot install the library on n8n cloud\n```json\nffmpeg -y -f concat -safe 0 -i /tmp/concat_list.txt \\\n-c copy /tmp/final_merged.mp3\n``"
      },
      "typeVersion": 1
    },
    {
      "id": "0b98b51d-f5a1-4107-903d-7d419cd6b75e",
      "name": "Nota adhesiva3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        336,
        -144
      ],
      "parameters": {
        "color": 7,
        "width": 288,
        "height": 400,
        "content": "## UPLOADS THE EBOOK TO DRIVE.\n\n[Resulting output](https://drive.google.com/file/d/12aVR2p-ZQ2DyqXCUgJPouzy-acoAB7WO/view?usp=sharing)"
      },
      "typeVersion": 1
    },
    {
      "id": "57a896d1-6d7e-4cba-b55a-d3ab31742f7c",
      "name": "FORMULARIO",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -1632,
        -48
      ],
      "webhookId": "d95584f4-a526-4218-8f75-2b17272ebba9",
      "parameters": {
        "options": {
          "appendAttribution": false
        },
        "formTitle": "Ebook to Audiobook",
        "formFields": {
          "values": [
            {
              "fieldType": "file",
              "fieldLabel": "UPLOAD",
              "multipleFiles": false,
              "requiredField": true
            }
          ]
        },
        "formDescription": "Upload your Ebook here"
      },
      "typeVersion": 2.3
    },
    {
      "id": "ad8b130e-e51d-40ad-85a1-9ce98e978422",
      "name": "EXTRAER TEXTO",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        -1456,
        -48
      ],
      "parameters": {
        "options": {},
        "operation": "pdf",
        "binaryPropertyName": "UPLOAD"
      },
      "typeVersion": 1
    },
    {
      "id": "3e47b303-ea16-4b57-9df3-227a4c3f7566",
      "name": "DIVIDIR EL TEXTO SEGÚN REGLAS",
      "type": "n8n-nodes-base.code",
      "position": [
        -1264,
        -48
      ],
      "parameters": {
        "jsCode": "const rawText = $input.first().json.text || \"\";\n\n// Clean function for JSON/TTS\nfunction cleanText(str) {\n    return str\n        .replace(/\\\\\\\\n/g, \" \")\n        .replace(/\\\\n/g, \" \")\n        .replace(/\\\\/g, \"\\\\\\\\\")\n        .replace(/\"/g, '\\\\\"')\n        .replace(/(\\r\\n|\\r|\\n)+/g, \" \")\n        .replace(/\\s+/g, \" \")\n        .trim();\n}\n\nconst text = cleanText(rawText);\n\nconst sentences = text.split(/(?<=[.!?])\\s+/).filter(Boolean);\n\nconst maxChars = 500;\nlet parts = [];\nlet chunk = \"\";\n\nfor (let sentence of sentences) {\n    if (sentence.length > maxChars) {\n        // Split very long sentence into smaller pieces\n        let start = 0;\n        while (start < sentence.length) {\n            const sub = sentence.slice(start, start + maxChars);\n            if (chunk) parts.push(chunk);\n            parts.push(sub);\n            chunk = \"\";\n            start += maxChars;\n        }\n        continue;\n    }\n\n    const space = chunk ? \" \" : \"\";\n    if ((chunk + space + sentence).length > maxChars) {\n        if (chunk) parts.push(chunk);\n        chunk = sentence;\n    } else {\n        chunk += space + sentence;\n    }\n}\n\nif (chunk) parts.push(chunk);\nconst result = parts.map((p, i) => ({ order: i + 1, text: p }));\n\nreturn result.map(r => ({ json: r }));\n"
      },
      "typeVersion": 2
    },
    {
      "id": "40d0a3d3-e4d0-4b0a-82d4-393aa5ad3aa2",
      "name": "Bucle sobre fragmentos de texto (5) a la vez",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        -1024,
        144
      ],
      "parameters": {
        "options": {},
        "batchSize": 5
      },
      "typeVersion": 3
    },
    {
      "id": "2c369974-0d97-405d-9121-cbcb5648c00c",
      "name": "ESPERA 5 SEGUNDOS",
      "type": "n8n-nodes-base.wait",
      "position": [
        -544,
        208
      ],
      "webhookId": "865809f7-7aea-40bd-9a0e-104a2ee18d73",
      "parameters": {},
      "typeVersion": 1.1
    },
    {
      "id": "c606fc3d-c0fc-41f7-a646-8f369ebea7ea",
      "name": "CONVERTIR URL A ARCHIVOS DE AUDIO",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -800,
        0
      ],
      "parameters": {
        "url": "={{ $json.output }}",
        "options": {}
      },
      "typeVersion": 4.2
    },
    {
      "id": "78cec513-0fe5-4325-93aa-198f63afdcd8",
      "name": "ASIGNAR ÍNDICES A ARCHIVOS DE AUDIO",
      "type": "n8n-nodes-base.code",
      "position": [
        -240,
        0
      ],
      "parameters": {
        "jsCode": "return items.map((item, index) => {\n  // Make a new item\n  const newItem = { json: {}, binary: {} };\n\n  // Copy the JSON data if you have any\n  newItem.json = { ...item.json };\n\n  // Loop through all binary properties\n  for (let key in item.binary) {\n    // Rename the binary key\n    const newKey = `audio ${index}`;\n\n    // Copy the binary data\n    newItem.binary[newKey] = { ...item.binary[key] };\n\n    // Rename the file itself\n    newItem.binary[newKey].fileName = `${newKey}.mp3`; // change extension if needed\n  }\n\n  return newItem;\n});\n"
      },
      "typeVersion": 2
    },
    {
      "id": "d7b3d611-98d0-44fc-8ded-597f1e5ad916",
      "name": "Cargar libro electrónico",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        432,
        0
      ],
      "parameters": {
        "name": "audiobook.mp3",
        "driveId": {
          "__rl": true,
          "mode": "list",
          "value": "My Drive",
          "cachedResultUrl": "https://drive.google.com/drive/my-drive",
          "cachedResultName": "My Drive"
        },
        "options": {},
        "folderId": {
          "__rl": true,
          "mode": "list",
          "value": "11eIODBtLZwiUjUVJvK97_Z42uPmEnMMu",
          "cachedResultUrl": "https://drive.google.com/drive/folders/11eIODBtLZwiUjUVJvK97_Z42uPmEnMMu",
          "cachedResultName": "Audiobook"
        }
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "4pJ4FbSsj82fOkbU",
          "name": "Gridve"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "33160ec4-53df-4a5c-95be-029065d4e2f7",
      "name": "MINIMAX TTS",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -768,
        208
      ],
      "parameters": {
        "url": "https://api.replicate.com/v1/models/minimax/speech-02-hd/predictions",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"input\": {\n    \"text\": \"{{ $json.text }}\",\n    \"pitch\": 0,\n    \"speed\": 1,\n    \"volume\": 1,\n    \"bitrate\": 128000,\n    \"channel\": \"mono\",\n    \"emotion\": \"happy\",\n    \"voice_id\": \"Friendly_Person\",\n    \"sample_rate\": 32000,\n    \"language_boost\": \"English\",\n    \"english_normalization\": true\n  }\n} ",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpBearerAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Prefer",
              "value": "wait"
            }
          ]
        }
      },
      "credentials": {
        "httpBearerAuth": {
          "id": "w56BeWYVDLf1uQQ9",
          "name": "Bearer YOUR_TOKEN_HERE account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "88c3f2dc-5690-45ac-90d6-86c27bfeb04e",
      "name": "Nota adhesiva4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -2256,
        -128
      ],
      "parameters": {
        "color": 7,
        "width": 528,
        "height": 528,
        "content": "# Watch the [Youtube Demo Video](https://img.youtube.com/vi/xKqkjXIPZoM/0.jpg)\n\n![Youtube Demo](https://img.youtube.com/vi/xKqkjXIPZoM/0.jpg)"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "d82d1c3b-0657-4fc5-8691-40ef2fe01121",
  "connections": {
    "57a896d1-6d7e-4cba-b55a-d3ab31742f7c": {
      "main": [
        [
          {
            "node": "ad8b130e-e51d-40ad-85a1-9ce98e978422",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "33160ec4-53df-4a5c-95be-029065d4e2f7": {
      "main": [
        [
          {
            "node": "2c369974-0d97-405d-9121-cbcb5648c00c",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "ad8b130e-e51d-40ad-85a1-9ce98e978422": {
      "main": [
        [
          {
            "node": "3e47b303-ea16-4b57-9df3-227a4c3f7566",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "c9aa3a38-449f-44a4-92d3-f28c1c29114c": {
      "main": [
        [
          {
            "node": "956de46d-86b8-40ec-81c0-91fe87113d75",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "7d65ca00-5f29-4e11-aaa8-77f8680add0c": {
      "main": [
        [
          {
            "node": "0adc9201-3479-450f-8b5e-6bbf16cf01d2",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "1405b1fb-7a4f-45d9-976c-121437ece794": {
      "main": [
        [
          {
            "node": "d7b3d611-98d0-44fc-8ded-597f1e5ad916",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "2c369974-0d97-405d-9121-cbcb5648c00c": {
      "main": [
        [
          {
            "node": "40d0a3d3-e4d0-4b0a-82d4-393aa5ad3aa2",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "0adc9201-3479-450f-8b5e-6bbf16cf01d2": {
      "main": [
        [
          {
            "node": "c9aa3a38-449f-44a4-92d3-f28c1c29114c",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "c606fc3d-c0fc-41f7-a646-8f369ebea7ea": {
      "main": [
        [
          {
            "node": "78cec513-0fe5-4325-93aa-198f63afdcd8",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "78cec513-0fe5-4325-93aa-198f63afdcd8": {
      "main": [
        [
          {
            "node": "7d65ca00-5f29-4e11-aaa8-77f8680add0c",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "3e47b303-ea16-4b57-9df3-227a4c3f7566": {
      "main": [
        [
          {
            "node": "40d0a3d3-e4d0-4b0a-82d4-393aa5ad3aa2",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "40d0a3d3-e4d0-4b0a-82d4-393aa5ad3aa2": {
      "main": [
        [
          {
            "node": "c606fc3d-c0fc-41f7-a646-8f369ebea7ea",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "33160ec4-53df-4a5c-95be-029065d4e2f7",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "956de46d-86b8-40ec-81c0-91fe87113d75": {
      "main": [
        [
          {
            "node": "1405b1fb-7a4f-45d9-976c-121437ece794",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}